Hello,I have some problems creating the sd-card image by myself, because I can't get ubuntu working with my graphic card. Is it possible, that someone could copy me an already created sd-card image?In general that seems easier to provide a finished image, instead averybody has to create an own image.

Thank you very much. I would really like to start executing java programs on the ev3.

Hi, the problem with custom images is the WIFI settings. Every user has to configurate the file: wpa_supplicant.conf Althougth you don't have a Graphical session with Ubuntu, it is not a problem, because you only need a shell.

For everyone, who might have the same problem. Enabling 3d acceleration in virtualBox worked for me only after first boot without it and installing the guest extensions. After that I could enable 3d acceleration. Since I tried it with three different pcs, it might be a common problem.

Creating an own sd-card image only for setting a custom config file ist indeed a big overhead. Is there no other way to connect to the EV3 using a cable? Then you could use a normalized image and edit or replace the config file with the cable connection.

But for me its now ok, I am just thinking how to make it easier for other people.

esmetaman wrote:Hi, the problem with custom images is the WIFI settings. Every user has to configurate the file: wpa_supplicant.conf

I think this is less of an issue than it could be. The EV3 will boot correctly even if there is a bad wireless config, it just won't connect to wireless. Since you can connect to the EV3 with a USB cable, you can then modify the wpa_supplicant.conf file to work with your wireless network. That actually sounds like a good candidate for a bit of automation... Anyhow, this would allow someone to easily use a pre-made image.

I suspect the bigger issue might be that Oracle wouldn't want the java version to be "redistributed" in this form. But IANAL, so don't take my advice

yes, I agree with you. In the case of a user who use a cable to connect EV3 brick, WIFI settings could be updated in that way, but how to redistribute Java?I am not sure if we could have a image uploaded in some repository with that dependency (Java). I am not sure frankly.